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DTSTART;TZID=America/New_York:20250520T163000
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DESCRIPTION:Talk 1: Some Further Thoughts and ideas concerning the classica
 l half-wave diploe antenna\nThe half-wave dipole is a widely used antenna 
 in Amateur Radio and other communications. It is often one of the first an
 tennas studied in college courses. Professor R.W.P. King dedicated over 10
 0 years to studying dipoles\, and his accurate measurements continue to va
 lidate modeling software. Through his 1950 book Antennas\, Professor John 
 Kraus inspired many in the field\, including the speaker. This presentatio
 n will explore key topics related to the half-wave dipole. First\, we will
  assess the accuracy of various antenna modeling codes\, using a unique su
 rface model in FEKO as a reference dipole compared to wire Method of Momen
 ts (MoM) methods. We will also review the famous formula 468/f\, which cal
 culates the length of a half-wave dipole in feet (where f is in MHz)\, and
  discuss its effectiveness and common misconceptions. It does not reliably
  tune all antennas to resonance for different wire or tubing diameters so 
 that we will provide a simple interpolation method for adjustments. Lastly
 \, we will present a new design method for constructing a half-wave dipole
  antenna independent of the conductor's diameter\, whether wire or tubing.
 \nTalk 2:The State-of-the-Art in Antenna-based Techniques for Mitigating T
 hreats to the Global Positioning System (GPS)\nNearly every aspect of soci
 ety relies on positioning\, navigation\, and timing (PNT) services from Gl
 obal Navigation Satellite Systems (GNSS)\, such as the Global Positioning 
 System (GPS). However\, GPS signals are vulnerable to spoofing and jamming
  due to their unauthenticated nature and weak signal strength at the Earth
 's surface. Implementing such attacks with low-cost hardware and open-sour
 ce software is relatively easy\, leaving many regions susceptible to these
  threats. Research over the past few decades has focused on improving PNT 
 performance amid jamming and spoofing\, typically categorized into five ma
 in approaches: 1) signal processing methods\, 2) antenna-based methods\, 3
 ) artificial intelligence (AI) techniques\, 4) non-GNSS sensors\, and 5) h
 ybrid methods combining various strategies. This presentation will provide
  an overview of GPS and GNSS technologies\, common attack strategies\, and
  various mitigation methods\, primarily focusing on antenna-based techniqu
 es. It will introduce a taxonomy of these techniques to enhance signal rec
 eption by maximizing authentic GPS signals and minimizing those from attac
 kers. The presentation will highlight well-known techniques and ongoing re
 search\, and discuss key research gaps and future directions.\n\nTalk 3:Th
 e High Frequency Active Auroral Research Program\, “HAARP”\, A Brief H
 istory and Engineering Review\nThe HAARP Research Facility is a state-of-t
 he-art ionospheric research project in Alaska and was jointly funded by th
 e U.S. Air Force\, U.S. Navy\, and the Defense Advanced Research Projects 
 Agency (DARPA). Designed and built by a Washington\, DC based APTI/BAE Sys
 tems team\, its purpose is to analyze the Earth’s ionosphere and investi
 gate the potential for developing ionospheric enhancement technology for r
 adio communications and surveillance\, in addition to new Radar and Radio 
 Communications research. The HAARP facility was built in three stages\, st
 arting in 1993\, research operations began in 1996\, and it was completed 
 in 2007. In 2015\, the HAARP program and all assets were officially transf
 erred to the University of Alaska Fairbanks (UAF)\, and it continues to op
 erate today. The most prominent instrument at the HAARP Research Station i
 s the Ionospheric Research Instrument (IRI)\, a 180-antenna tower phased a
 rray\, and 180 individual radio transmitter systems\, operating in the hig
 h frequency (HF) band with an adequate radiated power of 5 Gigawatts. The 
 HAARP IRI is recognized as one of the highest-powered HF transmitting syst
 ems in the world and is used to temporarily excite a limited area of the i
 onosphere for scientific study. Other instruments at the facility include 
 VHF and UHF radars\, a fluxgate magnetometer\, a Digi-sonde (an ionosphere
  sounding device)\, an induction magnetometer\, and low-light CCD camera o
 ptics systems\, which are all used to study the physical processes that oc
 cur in the excited ionosphere region. The HAARP facility has a 15-megawatt
  diesel engine-based power generation plant and a modern operations center
 .\nThe HAARP program is recognized as a highly successful research project
  that has overcome many unique and unusual radio engineering design challe
 nges. This presentation will provide an inside view describing how the HAA
 RP systems were designed\, constructed\, installed\, and operated\, with e
 mphasis on the unique engineering aspects of constructing this modern rese
 arch facility. Examples of scientific research conducted at the facility w
 ill also be presented.\n\nCo-sponsored by: IEEE North Jersey Section AP/MT
 T17\, ED/CAS\, and PHOTONICS Chapter\n\nSpeaker(s): Prof.  James K. Breaka
 ll\, Jack L. Burbank\, Steve Floyd\n\nAgenda: \n4:15 PM - Refreshments and
  Networking\n\n4:30 PM-6:30 PM: Talk by James K. Breakall\, Penn State Uni
 versity\, University Park\, PA 16802. Jack L. Burbank is the Vice Presiden
 t for Advanced Communications at Sabre Systems\, and Steve Floyd is the HA
 ARP Chief Engineer and Principal Systems Engineer at Ultra Electronics.\n\
 nYou do not have to be an IEEE Member to attend. Refreshments are free for
  all attendees. Please invite your friends and colleagues to take advantag
 e of these Invited Lectures.\n\nRoom: 202\, Bldg: ECEC\, 141 Warren St\, N
 ew Jersey Institute of Technology\, The Lewis and Julia P. Kieman Conferen
 ce Room\, Newark\, New Jersey\, United States\, 07102
LOCATION:Room: 202\, Bldg: ECEC\, 141 Warren St\, New Jersey Institute of T
 echnology\, The Lewis and Julia P. Kieman Conference Room\, Newark\, New J
 ersey\, United States\, 07102
ORGANIZER:anisha_apte@ieee.org
SEQUENCE:139
SUMMARY:Talks: (1) Some Further Thoughts and ideas concerning the classical
  half-wave diploe antenna (2) The State-of-the-Art in Antenna-based Techni
 ques for Mitigating Threats to the Global Positioning System (GPS)\, (3) H
 AARPP
URL;VALUE=URI:https://events.vtools.ieee.org/m/479676
X-ALT-DESC:Description: <br /><div class="t pg-1m0 pg-1x0 pg-1h3 pg-1y7 pg-
 1ff3 pg-1fs1 pg-1fc0 pg-1sc0 pg-1ls0 pg-1ws0" style="text-align: justify\;
 "><span style="font-size: 10pt\; font-family: arial\, helvetica\, sans-ser
 if\;"><strong>Talk 1: Some Further Thoughts and ideas concerning the class
 ical half-wave diploe antenna</strong></span></div>\n<div class="t pg-1m0 
 pg-1x0 pg-1h3 pg-1y7 pg-1ff3 pg-1fs1 pg-1fc0 pg-1sc0 pg-1ls0 pg-1ws0" styl
 e="text-align: justify\;"><span style="font-family: arial\, helvetica\, sa
 ns-serif\;"><span style="font-size: 13.3333px\;">The half-wave dipole is a
  widely used antenna in Amateur Radio and other communications. It is ofte
 n one of the first antennas studied in college courses. Professor R.W.P. K
 ing dedicated over 100 years to studying dipoles\, and his accurate measur
 ements continue to validate modeling software. Through his 1950 book Anten
 nas\, Professor John Kraus inspired many in the field\, including the spea
 ker.&nbsp\;</span></span><span style="font-family: arial\, helvetica\, san
 s-serif\;"><span style="font-size: 13.3333px\;">This presentation will exp
 lore key topics related to the half-wave dipole. First\, we will assess th
 e accuracy of various antenna modeling codes\, using a unique surface mode
 l in FEKO as a reference dipole compared to wire Method of Moments (MoM) m
 ethods. </span></span><span style="font-family: arial\, helvetica\, sans-s
 erif\;"><span style="font-size: 13.3333px\;">We will also review the famou
 s formula 468/f\, which calculates the length of a half-wave dipole in fee
 t (where f is in MHz)\, and discuss its effectiveness and common misconcep
 tions. It does not reliably tune all antennas to resonance for different w
 ire or tubing diameters so that we will provide a simple interpolation met
 hod for adjustments. </span></span><span style="font-family: arial\, helve
 tica\, sans-serif\;"><span style="font-size: 13.3333px\;">Lastly\, we will
  present a new design method for constructing a half-wave dipole antenna i
 ndependent of the conductor's diameter\, whether wire or tubing.&nbsp\;</s
 pan></span></div>\n<div class="t pg-1m0 pg-1x0 pg-1h3 pg-1y7 pg-1ff3 pg-1f
 s1 pg-1fc0 pg-1sc0 pg-1ls0 pg-1ws0" style="text-align: justify\;"><strong>
 <span style="font-size: 10pt\; font-family: arial\, helvetica\, sans-serif
 \;">Talk 2:The State-of-the-Art in Antenna-based Techniques for Mitigating
  Threats to the Global Positioning System (GPS)</span></strong></div>\n<di
 v class="t pg-1m0 pg-1x0 pg-1h3 pg-1y7 pg-1ff3 pg-1fs1 pg-1fc0 pg-1sc0 pg-
 1ls0 pg-1ws0" style="text-align: justify\;"><span style="font-family: aria
 l\, helvetica\, sans-serif\;"><span style="font-size: 13.3333px\;">Nearly 
 every aspect of society relies on positioning\, navigation\, and timing (P
 NT) services from Global Navigation Satellite Systems (GNSS)\, such as the
  Global Positioning System (GPS). However\, GPS signals are vulnerable to 
 spoofing and jamming due to their unauthenticated nature and weak signal s
 trength at the Earth's surface. Implementing such attacks with low-cost ha
 rdware and open-source software is relatively easy\, leaving many regions 
 susceptible to these threats.&nbsp\;</span></span><span style="font-family
 : arial\, helvetica\, sans-serif\;"><span style="font-size: 13.3333px\;">R
 esearch over the past few decades has focused on improving PNT performance
  amid jamming and spoofing\, typically categorized into five main approach
 es: 1) signal processing methods\, 2) antenna-based methods\, 3) artificia
 l intelligence (AI) techniques\, 4) non-GNSS sensors\, and 5) hybrid metho
 ds combining various strategies. </span></span><span style="font-family: a
 rial\, helvetica\, sans-serif\;"><span style="font-size: 13.3333px\;">This
  presentation will provide an overview of GPS and GNSS technologies\, comm
 on attack strategies\, and various mitigation methods\, primarily focusing
  on antenna-based techniques. It will introduce a taxonomy of these techni
 ques to enhance signal reception by maximizing authentic GPS signals and m
 inimizing those from attackers. The presentation will highlight well-known
  techniques and ongoing research\, and discuss key research gaps and futur
 e directions.</span></span></div>\n<div class="t pg-1m0 pg-1x0 pg-1h3 pg-1
 y7 pg-1ff3 pg-1fs1 pg-1fc0 pg-1sc0 pg-1ls0 pg-1ws0" style="text-align: jus
 tify\;">\n<div class="t pg-1m0 pg-1x0 pg-1h3 pg-1y7 pg-1ff3 pg-1fs1 pg-1fc
 0 pg-1sc0 pg-1ls0 pg-1ws0" style="text-align: justify\;"><strong><span sty
 le="font-size: 10pt\; font-family: arial\, helvetica\, sans-serif\;">Talk 
 3:The High Frequency Active Auroral Research Program\, &ldquo\;HAARP&rdquo
 \;\, A Brief History and Engineering Review</span></strong></div>\n<div cl
 ass="t pg-1m0 pg-1x0 pg-1h3 pg-1y7 pg-1ff3 pg-1fs1 pg-1fc0 pg-1sc0 pg-1ls0
  pg-1ws0" style="text-align: justify\;"><span style="font-family: arial\, 
 helvetica\, sans-serif\; font-size: 10pt\;">The HAARP Research Facility is
  a state-of-the-art ionospheric research project in Alaska and was jointly
  funded by the U.S. Air Force\, U.S. Navy\, and the Defense Advanced Resea
 rch Projects Agency (DARPA). Designed and built by a Washington\, DC based
  APTI/BAE Systems team\, its purpose is to analyze the Earth&rsquo\;s iono
 sphere and investigate the potential for developing ionospheric enhancemen
 t technology for radio communications and surveillance\, in addition to ne
 w Radar and Radio Communications research.&nbsp\; The HAARP facility was b
 uilt in three stages\, starting in 1993\, research operations began in 199
 6\, and it was completed in 2007.<span style="mso-spacerun: yes\;">&nbsp\;
 &nbsp\;</span>In 2015\, the HAARP program and all assets were officially t
 ransferred to the University of Alaska Fairbanks (UAF)\, and it continues 
 to operate today. </span><span style="mso-ascii-font-family: Calibri\; mso
 -fareast-font-family: Calibri\; mso-hansi-font-family: Calibri\; mso-bidi-
 font-family: 'Times New Roman'\;"><span style="font-family: arial\, helvet
 ica\, sans-serif\; font-size: 10pt\;">The most prominent instrument at the
  HAARP Research Station is the Ionospheric Research Instrument (IRI)\, a 1
 80-antenna tower phased array\, and 180 individual radio transmitter syste
 ms\, operating in the high frequency (HF) band with an adequate radiated p
 ower of 5 Gigawatts. The HAARP IRI is recognized as one of the highest-pow
 ered HF transmitting systems in the world and is used to temporarily excit
 e a limited area of the ionosphere for scientific study. Other instruments
  at the facility include VHF and UHF radars\, a fluxgate magnetometer\, a 
 Digi-sonde (an ionosphere sounding device)\, an induction magnetometer\, a
 nd low-light CCD camera optics systems\, which are all used to study the p
 hysical processes that occur in the excited ionosphere region.&nbsp\; The 
 HAARP facility has a 15-megawatt diesel engine-based power generation plan
 t and a modern operations center.&nbsp\;</span><br><span style="font-famil
 y: arial\, helvetica\, sans-serif\; font-size: 10pt\;">The HAARP program i
 s recognized as a highly successful research project that has overcome man
 y unique and unusual radio engineering design challenges. This presentatio
 n will provide an inside view describing how the HAARP systems were design
 ed\, constructed\, installed\, and operated\, with emphasis on the unique 
 engineering aspects of constructing this modern research facility. Example
 s of scientific research conducted at the facility will also be presented.
 </span><br style="mso-special-character: line-break\;"><!--[endif]--></spa
 n></div>\n</div>\n<p>&nbsp\;</p>\n<p>&nbsp\;</p>\n<p>&nbsp\;</p><br /><br 
 />Agenda: <br /><p><span style="font-family: arial\, helvetica\, sans-seri
 f\; font-size: 12pt\;">4:15 PM - Refreshments and Networking</span></p>\n<
 p><span style="font-family: arial\, helvetica\, sans-serif\; font-size: 12
 pt\;">4:30 PM-6:30 PM: Talk by James K. Breakall\, Penn State University\,
  University Park\, PA 16802. Jack&nbsp\;L. Burbank is the Vice President f
 or Advanced Communications at Sabre Systems\, and <span style="color: blac
 k\;">Steve Floyd is the HAARP Chief Engineer and Principal Systems Enginee
 r at </span><span style="color: black\;">Ultra Electronics.</span></span><
 /p>\n<p><span style="font-family: arial\, helvetica\, sans-serif\; font-si
 ze: 12pt\;">You do not have to be an IEEE Member to attend. Refreshments a
 re free for all attendees. Please invite your friends and colleagues to ta
 ke advantage of these Invited Lectures.</span></p>\n<p>&nbsp\;</p>\n<p>&nb
 sp\;</p>\n<p>&nbsp\;</p>\n<p>&nbsp\;</p>\n<p>&nbsp\;</p>\n<p>&nbsp\;</p>
END:VEVENT
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